Bolt seal



FIG. 1 is a perspective illustration of a bolt seal according to our design, the perspective being from the top rear end of the bolt seal;

FIG. 2 is a perspective illustration thereof, the perspective being from the bottom front end of the bolt seal;

FIG. 3 is a left side view thereof, the right side view being a mirror image thereof;

FIG. 4 is a bottom plan view thereof;

FIG. 5 is a top plan view thereof;

FIG. 6 is a front end view thereof; and,

FIG. 7 is a rear end view thereof. 

The ornamental design for a bolt seal, as shown and described. 